CDM-Qx Satellite Modem

Revision 5

Front Panel Operation

MN/CDMQx.IOM

5.6.1.9(Config„ODU) – OUTDOOR UNIT (for L-Band Unit Only)

ODU

(Outdoor Unit):

BUC

LNB

(◄ ► ENT)

The ODU (Outdoor Unit) menu permits the user to choose between controlling and monitoring either a BUC (Block Upconverter) or an LNB (Low-noise Block downconverter). Select BUC or LNB, using the ◄ ► arrow keys, then press ENT.

(Config„ODU„BUC) – BLOCK UPCONVERTER (BUC)

If BUC is selected, the following sub-menu is displayed:

BUC:M&C-FSK DC-Pwr 10MHz

Alarm Delay LO Mix(◄ ► ENT)

Select M&C-FSK, DC-Pwr, 10MHz, Alarm, Delay, LO, or Mix, using the ◄ ► arrow keys, then press ENT.

 

M&C-FSK

 

If an FSK-capable BUC is employed, this menu provides access to

 

 

 

a further set of menus that define the FSK setup, and use it for

 

 

 

control and monitor.

 

DC-Pwr

 

(DC POWER) If a BUC supply is installed this menu permits the

 

10MHz

 

user to turn DC power ON or OFF.

 

 

This menu permits the user to turn the 10MHz frequency reference

 

Alarm

 

for the BUC ON or OFF.

 

 

This menu permits the user to define the upper and lower limits for

 

 

 

a current ‘window’. If the measured BUC current falls outside this

 

 

 

window, an alarm is generated.

 

Delay

 

This menu permits the user to define the carrier-on delay following

 

LO

 

a power-up sequence.

 

 

This menu permits the user to define the LO frequency used in the

 

 

 

BUC. This is then used in the display of RF frequency in the

 

 

 

Config„Tx„Freq menu.

 

Mix

 

This menu permits the user to define the sense of the frequency

 

 

 

translation – either high-side mix or low-side mix.

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Mocomtech CDM-QX Config„ODU Outdoor Unit for L-Band Unit Only, Config„ODU„BUC Block Upconverter BUC, Odu, Buc Lnb